For nearly fool-proof weed suppression, install weed control fabric as a permanent mulch. It is effective in perennial borders, around single specimen plantings, hedgerows or other border plantings. Water easily permeates the fabric, but weeds cannot grow through it. Landscaping fabric for weed control is perfect for low-maintenance plantings of all types.
Remove all vegetation from the garden bed where you will install fabric to control weeds. Use a sod cutter to remove grass, then spray with a systemic herbicide to kill the remaining roots. Re-apply herbicide in seven to ten days, after newly exposed seeds have germinated.
Improve the soil by adding any desired organic soil amendments.
Install irrigation system components, if you are using one in the garden bed.
Transplant and install plant materials as desired.
Use a pair of scissors to cut landscaping fabric large enough to cover the garden bed from edge to edge. If the area is too large for one continuous piece of landscaping fabric, overlap the edges where they join by eight to ten inches.
Lay landscaping fabric on garden bed, right over the top of the plant materials.
Use a sharp knife or scissors to cut a large "X" over the spot where each plant is situated. Push the fabric down over the top of the plants, tucking it around the base of the plants.
Apply the mulch in a six- to eight-inch layer of wood chips, shredded bark or landscape rocks.